overstep
     v 1: pass beyond (limits or boundaries) [syn: {transgress}, {trespass}]
     2: go beyond; "She exceeded our expectations"; "She topped her
        performance of last year" [syn: {exceed}, {transcend}, {pass},
         {go past}, {top}]
     [also: {overstepping}, {overstepped}]
Source: WordNet® 2.0